Thomas Jefferson sent Lewis and Clark on an expedition in 1803 to look for a water route to the Pacific Ocean and Explore the West. They discovered around 300 unknown species, Indian tribes, and the Rocky Mountains. Lewis and Clark returned two years, four months and four days after they had left, bringing with them many new discoveries.
Lewis and Clark
Thomas Jefferson sent Lewis and Clark on an expedition in 1803 to look for a water route to the Pacific Ocean and Explore the West. They discovered around 300 unknown species, Indian tribes, and the Rocky Mountains. Lewis and Clark returned two years, four months and four days after they had left, bringing with them many new discoveries.